Why am I not convinced whatsoever? Maybe because of two pointless solutions: ASS + 4 cyl engine... in a car that for its price tag should make absolutely no difference on anyone's wallet based on $100/year savings in gas (if that). Not to mention that a lot of BMW owners could simply save gas by driving less aggressively, which is not something we want to worry about when, once again, purchasing a 240HP+ SPORT sedan for a price twice of another sedan.